Optical sensors

Summary A fibre optic biosensor for ethanol was developed, which is based on the enzymatic oxidation of ethanol. The sensor layer contains an oxygen-sensitive fluorescing indicator which reports the decrease in the local oxygen partial pressure as the result of the enzymatic oxidation. The sensor measures in the 50–500 mmol/l ethanol range, with an accuracy of ± 4 mmol/l at 100 mmol/l. The detection limit is 10 mmol/l ethanol.

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Optische SensorenTeil 20. Ein faseroptischer Biosensor für Ethanol

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Presented in part at the Biosensor International Workshop 1987 at GBF, Braunschweig, June 1987